Dual-Core! With a 2.80 GHz CPU speed and 800 MHz bus speed, this Intel Pentium D Processor 820 will take your computing experience to the extreme! This Socket 775 Dual-Core CPU features a 2 MB L2 Cache! Get the performance you need while surfing the Internet, working with applications and listening to music with this Intel Pentium D Processor 820! Upgrade today!